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FORD FOCUS FAULT CODE P0299 - Cars & Trucks

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Posted on Jan 02, 2017

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SOURCE: ford focus fault code p1246 is this an ecu fault

It's more than likely a wiring fault or an ECU fault - assuming this is one of the ECU controlled alternators. Check in this order 1 wiring 2 alternator 3 battery 4 ECM hope this helps

Posted on Feb 08, 2010

  • 98 Answers

SOURCE: VW Passat 08 plate Fault Coad P0299 and P2196

What seems to be the problem with the car, other than the codes?

Posted on Nov 24, 2012

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What is code , po299' on mitsubish shogun 2008


the following answer is courtsey of OBD-CODES.com OBD Codes Your OBD-II Trouble Codes Repair Site Home Trouble Codes FAQs Forums Store P0299 Turbo / Supercharger Underboost OBD-II Trouble Code Technical Description Turbocharger/Supercharger "A" Underboost Condition What does that mean? The P0299 DTC code refers to a condition where the PCM/ECM (powertrain/engine control module) has detected that the bank "A" or single turbocharger or supercharger is not providing a normal amount of boost. That could be due to a variety of reasons, which we detail below. On a normally operating turbocharged or supercharged engine the air going into the engine is pressurized and that's part of what makes so much power for an engine of it's size. If this code is set, you will likely notice reduced power output. In the case of Ford vehicles, this may apply: "The PCM checks for a minimum throttle intake pressure (TIP) PID reading during engine operation, which indicates an underboost condition. This DTC sets when the PCM detects that the actual throttle intake pressure is less than the desired throttle intake pressure by 4 psi or more for 5 seconds." Symptoms Symptoms of a P0299 DTC may include: MIL (Malfunction indicator lamp) illumination Reduced power output from engine, possibly in a limp mode Unusual sounds from the engine/turbo There would likely be no other symptoms. Potential Causes Potential causes of a P0299 turbo underboost code include: Intake (induction) air restriction or leak Failed or damaged turbocharger (sticking, binding, etc.) Faulty boost/charge pressure sensor Faulty wastegate bypass regulator valve (VW) Low fuel pressure condition (Isuzu) Sticking turbo nozzle control solenoid (Isuzu) Faulty injector control pressure (ICP) sensor (Ford) Low oil pressure (Ford) EGR system fault (Ford) Variable geometry turbocharger (VGT) actuator (Ford) VGT vanes sticking (Ford) Possible Solutions First off, you'll want to repair any other DTC codes if present prior to diagnosing this code. Start with a visual inspection. Inspect the intake air system for cracks, loose or disconnected hoses, restrictions, blockages, etc. Repair or replace as required. If the air induction system tests OK, then you'll want to focus your diagnosis efforts on the charge pressure control, diverter valve (blowoff valve), sensors, regulators, etc. Really at this point you'll want to refer to a vehicle specific detailed repair manual for specific troubleshooting steps. There are some known issues on certain makes and engines so also check out our car repair forums here and search using your keywords. For example, if you search around, you'll find that a common fix for a P0299 in VWs is to replace or repair the diverter valve or wastegate solenoid. On the GM Duramax diesel, this code may mean the turbo housing resonator has failed. If you have a Ford, you'll want to next check the wastegate regulating valve solenoid for correct operation

Read more at: http://www.obd-codes.com/p0299
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Aug 02, 2015 | Cars & Trucks

1 Answer

VW Passat 08 plate Fault Coad P0299 and P2196


What seems to be the problem with the car, other than the codes?

Nov 24, 2012 | 2008 Volkswagen Passat Sedan

1 Answer

VW P0299 engine code


P0299 VOLKSWAGEN - Turbocharger Engine Underboost
Possible causes- Faulty Wastegate Bypass Regulator Valve
- Mechanical damage at Turbo/Super Charger
- Faulty Charge Air Pressure Sensor

Oct 15, 2012 | Cars & Trucks

1 Answer

Ford focus fault code p1246 is this an ecu fault


It's more than likely a wiring fault or an ECU fault - assuming this is one of the ECU controlled alternators. Check in this order 1 wiring 2 alternator 3 battery 4 ECM hope this helps

Feb 08, 2010 | 2000 Ford Focus

1 Answer

Airbag dash light flashing code 51


Common fault on FORD

Usually due to a poor connection in the YELLOW PLASTIC CONNECTOR underneath the passenger seat.

Just push it together properly and it should clear the AirBag fault

May 18, 2009 | 2003 Ford Focus

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